000 00389nam a22001457a 4500
999 _c62757
_d62757
005 20201102152707.0
008 201102b ||||| |||| 00| 0 eng d
020 _a8122400981
082 _a621.38 G96P
100 _aGumhalter, Hans
245 _aPower Supply Systems in Communications Engineering
260 _aNew Delhi
_bWiley Eastern Limited
_c1989
300 _ap.230
942 _cDBK